Gas-range burner.



E. S. ALLEN.

GAS RANGE BURNER.

APPLICATION FILED APR. 29, 1911.

1 ,QS'Y, 344, Patented Feb. 17, 1914.

"Q. Kim M WITNESSES A TTORNEYS COLUMBIA PLANDGRAPH CO.,WASHINUTON, D. c.

onrrEn STATES PATENT carton.

EUGENE S. ALLEN, OF NEW YORK, N. Y.

GAS-RANGE BURNER.

Specification of Letters Patent.

Patented Feb. 17, 1914.

Application filed. April 29, 1911. Serial No. 623,997.

Gas-Range Burner, of which the following is a full, clear, and exact description.

My invention relates to gas range burners, and the invention comprehends a burner provided with a valve, said valve being controllable by the position of a grid or spider associated with the burner for the purpose of supporting pans or other articles to be heated.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure l is a plan view of my invention; and Fig. 2 is a substantially central vertical section through the same.

The body of the range is shown at 29 and contains a round open space 30. A sunken ring is shown at 31 and is integral with the body portion. A lug 32 is mounted upon the body portion and slightly overlaps the adjacent edge of the sunken ring 31. A grid 33 is provided with a rim 34 which rests upon the sunken ring 31 and extends slightly beneath the lug 32. The grid 33 is provided with knife edges 35 which rest upon bearings 36, the latter being merely portions of the sunken ring 31. Engaging the rim 34 at a point substantially opposite the lug 32 is a. piston valve 37 which fits into a barrel 38 and is engaged by a spring 39 which is quite delicate and easily compressed. The valve 37 has the form of a cylinder and is provided with a reduced portion 37 Connected with the barrel 38 is a gas ring 19 provided with holes 20. Between the gas ring 19 and the barrel 38 is an air inlet 21 provided with a revoluble door 22 having a general annular form and provided with openings 23 for admitting air. A valve -10 provided with a handle 41 controls the general supply of gas. A tubular member 11 connected with the barrel 38 carries at its inner end a pilot burner 12, which is controlled by a screw 13.

The operation of my device is as follows:

. The parts being arranged and connected as shown, and being adjusted, the handletl is turned so as to turn on the flow of gas. The pressure of the spring 39 normally keeps the piston valve 37 raised, as indicated in Fig. 2, so that the neck 37 of this valve is out of registry with the passage of the bar rel. Consequently no gas can pass to the ring 19. The grid 33 is almost balanced upon the knife edges 35. When nothing rests upon the grid 33, the delicate spring 39 is suflicient to maintain the grid in the position indicated in Fig. 2; one edge of the rim 3% resting upon the adjacent portion of the sunken ring 31 at a point adjacent to the lug 32. WVhen, however, an object to be heated is rested upon the grid 33, the grid will tilt if the object be disposed toward the front of the stovethat is, toward the bandle 41. If, on the contrary, the object be pushed toward the back of the stove, the grid 33 will take up such position that the rim 34 will engage the sunken ring 31. The operator, by shifting the object slightly, can cause the gas to be turned on or oil, according to the direction in which the object to be heated is moved. The grid 33 being almost balanced, the heavy object resting upon it will likewise be almost balanced, and on this account a very slight shift in the position of the said object will be suflicient to turn the gas on or off, as the case may be. Indeed, by exercising a little care the piston valve 37 may be depressed to a slight extent only, so that the flow of gas is simply curtailed, but is not cut off altogether.

I do not limit myself to the precise construction here shown, as various changes may be made therein without departing from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

In a gas range, the combination of. the body, of the range having a sunken ring provided with oppositely arranged depressed bearings, the body being provided with a lug projecting over the ring, a burner in the body of the range and having a sliding and spring pressed valve projecting above the ring of the body, the said valve being normally closed, and a grid having a rim fitting in the ring of the body under the said lug and providedwith knife edges resting in the said bearings, the bear- In testimony whereof I have signed my 1ngs and kmfe edges helng arranged a llttle name to th1s speclficatlon 1n the presence of at one s1de of the center and at that slde ad- V two subscr1b1ng wltnesses.

jacent the valve, whereby the portion at the EUGENE S. ALLEN. grid above the valves Will be normally ele- Witnesses:

vated so that When an article is placed there- VVALTON HARRIsON,

on it will be depressed and the valve opened. PHILIP D. ROLLHAUS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatentm, Washington, I). G. 

